*SUPPORT*
IN: tufa kiki dax OUT: RED PINK PINK
IN: wif blicket kiki OUT: PINK PINK PURPLE
IN: kiki fep wif OUT: PINK PURPLE PINK
IN: tufa blicket wif OUT: PURPLE PURPLE RED
IN: tufa OUT: RED
IN: lug OUT: YELLOW
IN: kiki dax OUT: PINK PINK
IN: tufa fep lug OUT: RED YELLOW RED
IN: wif fep lug OUT: PURPLE YELLOW PURPLE
IN: wif blicket wif OUT: PURPLE PURPLE PURPLE
IN: wif OUT: PURPLE
IN: wif wif dax OUT: PURPLE PURPLE PURPLE
IN: tufa blicket lug OUT: YELLOW YELLOW RED
IN: lug kiki fep tufa OUT: YELLOW PINK RED PINK

*QUERY*
IN: lug fep tufa OUT: YELLOW RED YELLOW
IN: tufa dax OUT: RED RED
IN: wif blicket tufa OUT: RED RED PURPLE
IN: tufa fep tufa OUT: RED RED RED
IN: lug fep kiki OUT: YELLOW PINK YELLOW
IN: lug dax OUT: YELLOW YELLOW
IN: wif dax OUT: PURPLE PURPLE
IN: lug tufa dax OUT: YELLOW RED RED
IN: wif lug fep kiki OUT: PURPLE YELLOW PINK YELLOW
IN: wif fep tufa OUT: PURPLE RED PURPLE

*GRAMMAR*
wif -> PURPLE 
 tufa -> RED 
 lug -> YELLOW 
 kiki -> PINK 
 u1 fep u2 -> [u1] [u2] [u1] 
 u1 dax -> [u1] [u1] 
 u1 blicket u2 -> [u2] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 